What is the main benefit of the finned reservoir add-on?

The finned design significantly increases the surface area of the reservoir, which helps to dissipate heat more effectively from the shock fluid. This leads to improved cooling and more consistent damping performance, especially under demanding conditions.

Will this finned reservoir work with any King shock?

This is an add-on option specifically designed for King 4.0 and 4.5 inch diameter shocks that already feature a diffuser and the RS (Remote Reservoir) setup. It is not a universal fit for all King shocks.

What is included with this finned reservoir option?

This product is an add-on option for the finned reservoir itself. It is designed to bolt onto your existing King shock reservoir. Please refer to the product listing to confirm all included components for the add-on.

King Shocks Finned Reservoir Add-On OPT-RS4-FIN

Name: King 4.0/4.5 w/ Diffuser RS Finned Reservoir Option Add-On
Brand: King Shocks
SKU: king-shocks-king-4-0-4-5-w-diffuser-rs-finned-reservoir-option-add-on-t14-895944
Price: 510.11 USD
Availability: BackOrder

King 4.0/4.5 w/ Diffuser RS Finned Reservoir Option Add-On

$510.11

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Shocks OPT-RS4-FIN finned reservoir add-on for 4.0/4.5 shocks with diffuser. Adds cooling capacity.

Key Features

This is an add-on option for King 4.0/4.5 inch diameter shocks with diffuser and RS (Remote Reservoir).
Features a finned design to increase surface area for improved heat dissipation.
Helps manage shock oil temperature, reducing the potential for performance fade during heavy use.
Designed to bolt onto the existing reservoir body for an easier upgrade.

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Product Details

King Shocks is well-known for their high-performance suspension components, especially for off-road applications. This finned reservoir option, part number OPT-RS4-FIN, is an add-on designed to work with their 4.0 and 4.5 inch diameter shocks that feature a diffuser and RS (Remote Reservoir) setup. It's built to enhance the cooling capabilities of your existing King shocks.

The primary function of this finned reservoir is to increase the surface area exposed to the air. The fins are strategically placed to help dissipate heat more effectively from the shock's fluid. This improved heat management is crucial for maintaining consistent damping performance, especially during prolonged use in demanding conditions like off-roading, rock crawling, or high-speed desert driving. By keeping the shock oil cooler, you reduce the risk of shock fade, ensuring your suspension continues to work as intended when you need it most. This add-on is a solid option if you're looking to get the most out of your King shocks in high-heat environments.

This option is specifically for adding the finned reservoir to existing King 4.0/4.5 RS shocks that already have the diffuser feature. It's important to confirm your current shock configuration matches the requirements for this add-on. The finned design is a direct bolt-on to the reservoir body, allowing for a straightforward upgrade to your suspension's thermal management system.